Connecting to Ravel Oracle 11g

After installing Ravel

• Introducing yajra/larvel-oci8
• Edit php.ini
  add extension=php_oci8_11g.dll; Use with Oracle 11gR2 Instant Client
• config\database.php Configuration

After doing the above and performing the migration

InvalidArgumentException
Unsupported driver [oracle]

The connection failed.

conIt was caused by a omission in config/app.php.
After doing the description and re-migration,

Symphony\Component\Debug\Exception\FatalErrorException
Call to undefined function Yajra\Pdo\oci_connect()

The connection failed.

Does anyone know what it is?
Thank you for your cooperation.